Документ взят из кэша поисковой машины. Адрес оригинального документа : http://hea-www.harvard.edu/~fine/POV/src/bolt_cup.pov Дата изменения: Mon Nov 1 19:09:31 2004 Дата индексирования: Tue Oct 2 06:55:43 2012 Кодировка:

#include "functions.inc"

//coffee cup
#declare bolt_cup =
union {
//cup
difference {
cylinder { <0,0.6,0> <0,3.75,0> 1.625 }
cylinder { <0,0.9,0> <0,3.8,0> 1.375 }
cone { <0,3,0> 1.3 <0,3.8,0> 1.5 }
//round the transition between cone and cylinder
#declare trans_rad=1;
//intersection of cone and cylinder above occurs at y=3.3
difference {
cylinder { <0,0,0> <0,0.2443*trans_rad,0> 1.375+trans_rad }
torus { 1.375+trans_rad trans_rad }
translate (3.3-trans_rad*0.12309)*y
}
}
torus { 1.585 0.04 translate <0,3.75,0> }
torus { 1.535 0.04 translate <0,3.75,0> }
torus { 1.585 0.04 translate <0,0.6,0> }
//handle
//top nut
intersection {
sphere { <0,-0.20,0> 0.4 }
prism {
linear_sweep linear_spline -0.1,0.25,7,
<-0.216,0.125> <0,0.25> <0.216,0.125>
<0.216,-0.125> <0,-0.25> <-0.216,-0.125> <-0.216,0.125>
}
scale 1.2
rotate -90*z
translate <1.625,3.25,0>
}
//top of u-bolt
cylinder { <1.625,3.25,0> <2.125,3.25,0> 0.1875 }
difference {
torus { 0.5 0.1875 rotate 90*x }
box { <-2,-2,-2> <2,0,2> }
box { <-2,-2,-2> <0,2,2> }
translate <2.125,2.75,0>
}
cylinder { <2.625,1.75,0> <2.625,2.75,0> 0.1875 }
difference {
torus { 0.5 0.1875 rotate 90*x }
box { <-2,2,-2> <2,0,2> }
box { <-2,-2,-2> <0,2,2> }
translate <2.125,1.75,0>
}
//bottom of u-bolt
cylinder { <1.625,1.25,0> <2.125,1.25,0> 0.1875 }
//bottom nut
intersection {
sphere { <0,-0.20,0> 0.4 }
prism {
linear_sweep linear_spline -0.1,0.25,7,
<-0.216,0.125> <0,0.25> <0.216,0.125>
<0.216,-0.125> <0,-0.25> <-0.216,-0.125> <-0.216,0.125>
}
scale 1.2
rotate -90*z
translate <1.625,1.25,0>
}

//top bolt opposite side
cylinder { <-1.625,3.25,0> <-2.125,3.25,0> 0.18 }
torus { 0.14 0.04 rotate 90*z translate <-2.125,3.25,0> }
cylinder { <-1.625,3.25,0> <-2.165,3.25,0> 0.14 }
isosurface {
function { f_helix1(x,y,z,1,90,0.03,0.18,1,1,0) }
contained_by { box { <-1,0,-1> <1,0.5,1> } }
max_gradient 2
rotate -90*z
translate <-2.125,3.25,0>
}
//nut
intersection {
sphere { <0,-0.20,0> 0.4 }
prism {
linear_sweep linear_spline -0.1,0.25,7,
<-0.216,0.125> <0,0.25> <0.216,0.125>
<0.216,-0.125> <0,-0.25> <-0.216,-0.125> <-0.216,0.125>
}
scale 1.2
rotate 90*z
translate <-1.625,3.25,0>
}

//bottom bolt opposite side
cylinder { <-1.625,1.25,0> <-2.125,1.25,0> 0.18 }
torus { 0.14 0.04 rotate 90*z translate <-2.125,1.25,0> }
cylinder { <-1.625,1.25,0> <-2.165,1.25,0> 0.14 }
isosurface {
function { f_helix1(x,y,z,1,90,0.03,0.18,1,1,0) }
contained_by { box { <-1,0,-1> <1,0.5,1> } }
max_gradient 2
rotate -90*z
translate <-2.125,1.25,0>
}
//nut
intersection {
sphere { <0,-0.20,0> 0.4 }
prism {
linear_sweep linear_spline -0.1,0.25,7,
<-0.216,0.125> <0,0.25> <0.216,0.125>
<0.216,-0.125> <0,-0.25> <-0.216,-0.125> <-0.216,0.125>
}
scale 1.2
rotate 90*z
translate <-1.625,1.25,0>
}

//base (on real cup, this is a rubber cap that covers the bottom)
cone { <0,0,0> 1.45 <0,0.65,0> 1.55 }
#local i=0;
#while (i<7)
torus { 1.5+i*0.01 0.04 translate (0.05+0.08*i)*y texture { blackrubber } }
#local i=i+1;
#end
texture { blackplastic }
}